Appointments+ Dummy Service Provider Not Showing Properly

Hello,

I've set up Appointments+. I have two services on different schedules. Per the FAQ, I set up a "dummy" service provider for the other service (we'll call them A and B), but on the calendar it still shows the original provider who is only supposed to provide service A as providing service B during service A times. I've tried everything I can think of to resolve the issue. I've triple-checked that the provider is only providing service A, and the dummy is providing service B. Any help would be appreciated. Thanks